Hardware Spec Index

Zephyra PW-3053 Ultra 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Zephyra · SKU PW3053-ULTRA · Released 2021 · Updated 2026-10-18

Key facts

Benchmark index812 (Power Supplies scale)
Category rank#45,757
Street price$39
Power550 W (rated)
Performance per dollar20.82
Released2021

Specifications

BrandZephyra
ModelZephyra PW-3053 Ultra
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityNon-modular
Fan140 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty5 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Zephyra PW-1880 Core 1300W 80 PLUS Platinum ATX 3.1 Power Supply2,589$299Compare
Caldera PW-5864 XT 550W 80 PLUS Gold ATX Power Supply688$39Compare
Vantrel PW-3033 SE 850W 80 PLUS Gold ATX Power Supply1,542$89Compare
Caldera PW-5196 SE 850W 80 PLUS Gold ATX Power Supply1,904$159Compare
Teralux PW-5300 Prime 1000W 80 PLUS Gold ATX 3.1 Power Supply1,868$179Compare
Novexa PW-4372 Prime 1000W 80 PLUS Gold ATX 3.0 Power Supply1,816$169Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-3053 Ultra 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/20008298 (accessed 2026-10-18).